| Parameter | MC-18a |
| Model / Series | MC-18a (Metasol series) |
| Main contacts | 3 × NO (3P) |
| Auxiliary contacts | Variant: 1 NO + 1 NC typical |
| Rated current (AC-3) | ≈18 A |
| Coil/control voltage | AC and DC coil variants available |
| Rated operational voltage (Ue) | Up to 690 V |
| Rated insulation voltage (Ui) | ~690–1000 V |
| Dimensions (W×H×D) | ~45 × 73.5 × 82 mm (typical small-frame dims; PN dependent) |
| Mounting | DIN-rail or panel (screw) |
| Standards / Certifications | IEC 60947-4-1, UL-508 |
Compact 3-pole magnetic contactor rated for 18 A (AC-3) switching with selectable coil voltages (AC/DC variants) and DIN-rail / screw mounting options. Good when you need a small, robust contactor for light motor or control loads.
The Polar Energy Assessment:
MC-18a is the go-to tiny workhorse: enough current for small motors and control circuits while keeping panel footprint minimal. It offers Metasol’s accessory ecosystem (overload relay MT-12, side/front auxiliaries) and proven electrical life for repetitive switching in automation racks. Don’t try to run big motors on it; this is a small-frame unit.
Product images are for illustrative purposes only and may not exactly match the actual item. All specifications and technical details should be verified using the official catalogs and datasheets provided by the respective manufacturer, as discrepancies may exist on this website.
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